Means for attaching refrigerant tubing in refrigerated showcases



Feb. 9, 1965 K. A. WEBER MEANS FOR ATTACHING REFRIGERANT TUBING IN REFRIGERATED SHOWCASES Filed April 11. 1960 I INVENTOR. 16424 ,q EEe ill/ 3,lh8,82 Patented Feb. 9, 1965 ice 3,168,820 MEANS FGR ATTAtJHlNG REFRIGERANT TUEENG ihl REFREGERATED SHOWEASE Karl A. Weber, Los Angeles, (Ialifi, assignor to Weher tihowcase 8r Fixture C0,, Ind, Los Angeles, (Ialii, a corporation of Delaware Filed Apr. 11, W60, Ser. Noa 21,246 1 Claim. (til. 62-4283) This invention relates to an improved attachment for refrigerant tubing in a refrigerated showcase.

It is an object of this invention to provide means for supporting refrigerant tubing to the wall of a refrigerated showcase in such a manner as to prevent frost and ice conditions thereon.

A further object of this invention is to eliminate heat exchange between the refrigerant tubing and the wall casing to provide a uniform temperature for the wall.

A still further object of this invention is to provide means whereby moisture in the air in a showcase can be caused to migrate to a scavenger coil to prevent accumulation thereof elsewhere.

Other objects and advantages of this invention will be readily apparent from the following description.

In the drawings:

FIGURE 1 is a plan view of a showcase wall having refrigerant tubing attached thereto.

FIGURE 2 is a view taken along line 22 of FIG- URE 1.

FIGURE 3 is a view taken along line 3--3 of FIG- URE 2.

FIGURE 4 is a perspective of the tubing mounting.

FIGURE 5 is a diagrammatic view of the insert.

The numeral 16' represents the Wall of a refrigerated showcase such as for example the type used for display of frozen foods or the like. Tubing 12 is mounted upon the wall 10 and is utilized to circulate the refrigerant to cool the space within the showcase.

The tubing 12 is secured to wall 10 by means of straps 14 which pass around the tubing 12 and has the ends thereof spot welded 15 or otherwise aifixed to the wall 10.

An insert 16 is positioned between wall 10 and tubing 12. This insert is formed of a suitable material which is non-conductive of heat, such materials being well known to those skilled in the refrigerating art. The insert has an arcuate cross-section which receives tubing 2 and an insert filler is utilized to completely encircle tubing 12 with the non-conductive material and thus reduce heat transfer between the tubing 12 and wall 141) and strap.

14;, preventing abnormally cold spots and hence formation of frost and ice on the wall 16.

in operation of the refrigerant system the scavenger coil formed by tubing 12 will get colder more quickly than the walls in because of the non-conductive insert 16 and all of the moisture will migrate to and freeze upon tubing 12. During defrost this accumulated moisture will melt and theresultant Water is drained away.

While what hereinbefore has been described as the preferred embodiment of this invention, it is readily apparent that alterations and modifications can be resorted to without departing from the scope of this invention and such alterations and modifications are intended to be included within the scope of the appended claim.

I claim:

In a refrigerated showcase of the type wherein refrigerated air is circulated over the produce, the combination of a scavenger coil in the form of a refrigerant carrying tube to which moisture in the showcase will migrate and condense, a strap looped over to said tube and secured to a wall of said showcase, an element of nonheat conducting material surrounding said tube and isolating same from said strap and said wall.

Reterences Cited in the file of this patent UNITED STATES PATENTS 1,987,422 Steenstrup Ian. 8, 1935 2,516,586 Peltier July 25, 1950 2,625,378 Nason Jan. 13, 1953 3,015,465 Schmitt Ian. 2, 1962 FOREIGN PATENTS 619,444 Great Britain Mar. 9, 1949 

